Ques:- A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once to see if the bulb is lit or not (this is not visible from the outside), how can you determine with which of the three switches the light bulb can be switched on?
Ques:- Elaborate about yourself
Ques:- The incomes of two persons A and B are in the ratio 3:4. If each saves Rs.100 per month, the ratio of their expenditures is 1:2 . Find their incomes?
Recent Answer : Added by srikanth On 2022-03-09 16:41:20:
50 each
3x -y = 100
4x-2y = 100
Ques:- Why are you interested working here?
Ques:- Print the minimum number of measurements needed to spot the odd ball out among N balls.
Ques:- Why Govt. Have Need of WCT.
Ques:- What was the toughest part of your last job?
Ques:- Was Manmohan Singh the governor of RBI?
Ques:- You have 5 jars of pills. Each pill weighs 10 gram, exceptfor contaminated pills contained in one jar, where each pillweighs 9 gm. Given a scale, how could you tell which jar hadthe contaminated pills in just one measurement?
Ques:- Which of the following is a major rubber producing State inIndia?1 Kerala2 Assam3 West Bengal4 Orrisa
Recent Answer : Added by BALAJI On 2021-12-09 18:40:15:
Kerala
Ques:- How does your experience line up with the requirements of the company?
Ques:- When x is real what is the least value of (x**2-6*x+5)/(x**2+2*x+1)
Recent Answer : Added by Admin On 2020-05-17 12:01:23:
(x**2 – 6* x + 5) = (x-1)*(x-5)
(x**2 + 2 * x + 1) = (x + 1) * (x+1) = (x+1)**2
For what x is (x-1)*(x-5)/( (x+1)**2) a minimum?
One way to answer this question is by using calculus.
Take the derivative, and set to zero.
Since this is a fraction of polynomials, and a fraction is
zero only if it’s numerator is zero, we need calculate only
the numerator of the derivative and set it to zero.
The numerator of the
Derivative of (x-1)*(x-5)/( (x+1)**2) is
( (x-1) + (x-5) ) ( x+1)**2 – (x-1)(x-5)( 2 (x+1) )
= (2 x – 6) (x+1)**2 – (2) (x-1)(x-5) (x+1)
= 0
Divide through by 2 (x+1)
(x-3)(x+1) – (x-1)(x-5) = 0
(x**2 – 2 x – 3 ) – (x**2 – 6 x + 5) = 0
x**2 – x**2 – 2 x + 6 x – 3 – 5 = 0
4 x – 8 = 0
x = 2
Plugging in x = 2 into the original
(x**2-6*x+5)/(x**2+2*x+1)
gives us (2**2 – 6 * 2 + 5)/(2**2 + 2*2 + 1)
= (4 – 12 + 5) / (4 + 4 + 1) = -3/9 = -1/3
Least value is -1/3
Ques:- About yourself and project related.
Ques:- Why do you want to leave the old job?
Ques:- How do you set yourself aside from the next
Ques:- How long does a train 165 meters long running at the rate of 54 kmph take to cross a bridge 660 meters in length?
Recent Answer : Added by Nayana On 2022-09-23 18:07:00:
Speed of train = 54km/hr
= 54 x (5/18) m/s
= 15 m/s
Length of train = 165m
Time required to cross a bridge of 660m in length = (660+165) / 15
= 55 seconds
Ques:- There are some rabbits and peacocks in a zoo. The total number of their heads is 60 and total number of their legs is 192. Find the number of total rabbits?
Recent Answer : Added by SAID OUJEAR On 2021-08-09 17:01:34:
24 peacocks and 36 rabbits
Ques:- In a certain company, 20% of the men and 40% of the women attended the annual company picnic. If 35% of all the employees are man, what percent of all the employees went to the picnic?
Recent Answer : Added by Admin On 2020-05-17 12:00:16:
Answer is 33%
{35 % of all the employees are men.
so 65 % (100-35) of all the employees are women.
35*20%=7% of the men attended the annual company picnic and
65*40%=26% of the women attended the annual company picnic.
so 33%(7+26) of all the employeeswent to the picnic.}
Ques:- Two pipes X and Y can separately fill a tank in 12 and 15 minutes respectively. A third pipe Z can drain off 45 liters of water per minute. If all the pipes are opened, the tank can be filled in 15 minutes. What is the capacity of the tank?
Recent Answer : Added by mani On 2021-01-30 01:20:25:
540 liters
Ques:- Three different containers contain different quantities of mixture milk and water, whose measurements are 403 Kg, 434 Kg and 465 Kg. What biggest measure must be there to measure all the different quantities exactly?
A. 1 Kg
B. 7 Kg
C. 14 Kg
D. 31 Kg
Recent Answer : Added by anonymous On 2022-03-09 16:37:53:
31
cos
434-403=31
465-434=31
Ques:- The C.P of 15 books is equal to the S.P of 18 books. Find his gain% or loss%?
Recent Answer : Added by Pawan On 2021-07-18 09:42:52:
16.25
Ques:- What do you like to do
Ques:- A goods train runs at the speed of 72 km/hr and crosses a 250 m long platform in 26 sec. What is the length of the goods train?
Recent Answer : Added by Madhumati On 2021-11-13 11:02:30:
224
Ques:- Describe ur self
Ques:- A, B, C, D, E and F are six cities which are collinear in the same order. The distance between any two adjacent cities is equal. A bus starts at A for city F. It takes 25 minutes for the bus to travel from one city to another and stops for 5 minutes at each place. If the bus reaches E at 8:55, then at what time did it reach station B?
Recent Answer : Added by Km Srinivas On 2022-03-09 16:42:15:
6.35
Ques:- How did your supervisor on your most recent job evaluate your job performance? What were some of the good points & bad points of that rating?
Ques:- Which is better to grow plants in Rock sand or soil?
Ques:- If a clerk can process 80 cheques in half an hour, how many cheques can she process in a seven and one half hour day?
Recent Answer : Added by Kayode kolade On 2022-08-14 18:02:35:
1/2 Hr -> 80 Cheques
Per Hour -> 80 * 2 = 160
For 7 Hours -> 160 * 7 = 1120
For 7 1/2 Hour -> 1120 + 80 = 1200
clerk can process 1200 cheques in Sever & one half an hour day.
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50 each
3x -y = 100
4x-2y = 100